Mail-selecting apparatus.



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7 fij* APPLCATWN FILED MAR 27 1914 C. C. CADDEN.

. MAIL SELECTING APPARATUS.

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MAIL SELECTING APPARATUS.

APPLICATION FILED MAR.27.1914.

Patented Aug. 2l, 1917.

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MAIL SELECTING APPARATUS.

APPLICATION FILED MAR. 27,1914.

Patented Aug. 21, 1917.

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MAIL SELECTING APPARATUS.

APPLICATION FILED IVI/m27, 1914.

I 1,237,747. Patented Aug. 21, 1917.

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MAIL sELEcTmG APPARATUS.

APPLICATION FILED MAR. 27. 1914.

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APPLICATION FILED MAR. 21.1914.

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MAIL SELECTING APPARATUS.

APPLICATION man MAR. 21. |914.

Patented Aug. 21, 1917.

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C. C. CADDEN.

MAIL SELECTING APPARATUS.

APPucATloN msn 111/111. 27. 1914.

1,237,747. Patented Aug. 21, 1917.

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MAH. SELECTING APPARATUS.

APPLICATION FILED MAR.21.1914.

1,237,747. Patented Aug. 21, 1917,

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MAIL SELECTING APPARATUS.

APPLICATION FILED MAR.27,1914.

Patented Aug. 21, 1917.

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l/basses C. C. CADDEN.

MAIL SELECTING APPARATUS.

APPucATloN FILED MAR.27.1914.-

1 ,237,747. Patented Aug. 21, 1917.

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IVIAIL SELECTING APPARATUS.

APPLICATION FILED MAR. 27, I9I4.

Patented Aug. 21, 1917.

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CHARLES C. CADDEN, OF AKRON, OHIO, ASSIGNOR TO MECHANICAL EFFICIENCY COM- PANY, OF AKRON, OHIO, A COPARTNERSHIP CONSISTING OF B. 'Gn WORK, J'. K. MITCHELL, AND E. C. SHAW, ALL OF AKRON, OHIO, AND CASIMIR GEHRING, OF;

PARIS, FRANCE.

MAIL-SELECTING 'APPARATU Specification of Letters Patent.

Patented Aug. 21, 1917.

Application led March 27, 1914. Serial No. 827,544. I

To all whom z't may concern.'

Be it known that I, CHARLES C. CADDEN, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement in Mail-Selecting Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a system for rapidly and efliciently selecting letters or other units of mail matter from a general mass or group of mail according to the address thereon, and separating each selected piece from the mass.

To this end I provide carriers having a settable feature and having means for holding the mail matter; mechanism for loading the letters one at a time into the respective carriers, and a mechanism for. conveying the carriers successively to a keyboard machine where the carriers bring the letters into a reading position in front of the keyboard operator; I provide mechanism in this keyboard machine cooperating with. the settable feature on the carrier, to set the same according to the address on the piece of mail matter on such carrier; I provide conveyer mechanism for transporting the carrier from the keyboard machine to a selecting mechanism` which latter comprises an endless propelling mechanism for moving the carriers past selector bars. which are' set according to the route desired, and are adapted to co-act with the settable feature of the carrier to determine which carriers shall remain on the endless propelling mechanism and which shall be removed therefrom; I further provide mechanism for removing the mail matter from the carriers so selected by the selector bars, and conveyer mechanism for returning empty carriers automatically to the loading mechanism.

The selector bars may operate on a principle similar to the distributer ba`r on the Mergenthaler linotype machine, and act to allow all carriers having a certain setting, (that is a certain positioning of the settable feature) to drop. thereby taking from the' general group of pieces of mail matter in a machine those which are to be sent out by the same route.

One form of apparatus by which I accomplish the above results is hereinafter more fully described and explained in connection with the -drawings and the essential characteristics of my invention are set forth in the claims.

Referring to the drawings: Figure 1 is a perspective view of the mail selecting apparatus showing somewhat diagrammatically the mechanism for loading the carriers, the keyboard machine, selecting machine, and the, c onveyer mechanism connecting these machmes; Fig. 2 is .an elevation of a carrier adapted to hold the piece of mail matter and having a settable feature; Fig. 3 is an elevation of the carrier taken on the same plane as Fig. 2, with a plate covering the setta'ble mechanism removed, for clearness of illustration; Fig. 4 is a top edge or plan y View of the carrier; Fig. 5 is a side edge elevation of the carrier; Fig. 6 is a detail of a plate comprising part of the settable mechanism `and acting to hold and release the same; Fig. 7 is a side elevation of the machine for loading the carriers; Fig. 8 is an elevation of the other side of the same; Fig. 9 is a vertical section through the loading mechanism showing the relative positions of the feeding rolls, the letters and the carriers; Fig. v10 is an elevation of the loading machine taken on the side from which the carriers are taken; Fig. 1l is a plan of the loading machine; Fig. l2 is a section taken on the line 12--12 of Fig. 9, showing the mechanism for bringing the carriers into position for receiving letters; Fig. 13 is a front elevation of the keyboard mechanism showing the guideways for bringing carriers to the reading position, and the conveyer mechanism for taking the carriers from the machine; Fig. 14 is a side elevation of the keyboard machine; Fig. 15 is a sectional plan view taken on the line 15-15 of' Fig. 14, showing particularly the connections between the keys and the mechanism for setting the carriers; Fig. 16 is an enlarged detail showing the pushers for setting the carriers in operative position when a key is depressed; Fig. 17 is a side elevation of the selecting machine showing the various conveyer mechanisms for handling the carriers; Fig. 18 is an end elevation of the same taken on the side from ywhich the carriers are fed; Fig. 19 is an enlarged sectional detail showing the' selector bars and mechanism for positioning or setting the same according to different routes; Fig. 20 is a plan of the selector bars and their setting mechanism; Fig. 21 is an enlarged detail on the same scale as the last two described figures, being a side elevation of .a selector bar with a portion of the support broken away for clearness of illustration; Fig. 22 is also an enlarged detail of the selector bars showing a portion of the chain for propelling the carriers and showing an automatic switch for stopping the mechanism; Fig. 23 is a detail on the same scale, being a cross section through the supports showing a carrier in position in the propelling chain; Fig. 24k is a sectional detail of a chain showing projeetions adapted to cooperate with the carrier controlling device', hereinafter described; Fig. 25 is a perspective view of the selector bars showing the relative positions of carriers having diderent settings, as they are passing the selecting device; Fig. 26 is a sectional view showing the propelling chain of the selecting mechanism and the guides for keeping the carriers in the chain; Fig. 27 is a diagrammatic view showing the use of a compound keyboard mechanism with conveyer mechanism for bringing carriers into a plurality of reading positions allowing several operators to work at one time, showing connections between the carrier loading mechanism and the keyboard meehanism, and between the keyboard mechanism and the selecting mechanism, Fig. 28 is a. side elevation on `an enlarged scale of the mechanism for bringing the carriers alternately to the various reading positions with the mechanism for driving and operating the same; Fig. 29 is an end elevation of the mechanism shown in Fig. 28, clearly illustrating a suitable driving mechanism; Fig. A30 is .a still further enlarged detail of one of the gates operating to discharge the carriers to one of the reading positions and showing one of the spiral screws for propelling the carriers; Fig. 31 is a cross section of this mechanism taken on the same scale as Fig. 28, showing a carrier being propelled by the propelling means, and showing the carrier dropping through one of the gates; Fig. 32 is .a detail of the belts for conveying the carriers from each reading position, this figure lbeing a side elevation of the conveyer belts and showing a device for preventing the carriers coming one on top of another as they are discharged by keyboard mechanism from any of the reading positions.

A Referring to Fig. 1, 1 indicates the loading machine which is adapted to feed the carriers one by one into positions to receive letters and place individual letters into each carrier; 2 indicates the keyboard mechanism which is adapted to position the settable mechanism on the carrier according to the address on the letter carried thereby; 3 indieates the selecting machine, having mechanism adapted to move the carriers continuously past the selector device and which is provided with mechanism for loading the carriers into the continuous propelling mechanism, and is also provided with means for removing the letters from the selected carriers; 5 refers generally to the mechanism connecting each of said machines for conveying the carriers from one machine into another, in the order above named, and from the selecting machine, back to the loading machine. Each of the mechanisms comprising my apparatus is hereinafter tully described.

The articles to be selected are herein referred to as pieces oi mail matter, and for convenience. more frequently as letters, but it is to be understood that my selecting system may be adapted for any class of small articles, to be selected according to certain characteristics thereof.

Referring first to the carrier, desigiiated 7 :"This carrier comprises a plate 10, having cars 11 projecting from two opposite sides at the upper edge. with undercut portions 13 and cars 12, proj ecting from the same op posite sides at the lower edge. These projecting ears furnish a means i'or sliding the carriers over rails which the ears engage, and lfor propelling them in the selecting machine and for conveniently handling them throughout my system, as will be hereinafter described. At the upper portion of the carrier is formed a narrow housing 14:. The plate 10 forms the back side of the housing, while the front side is formed by a cover plate l5, mounted on a cross member 1G and vertical strips 17, secured to the plate 10, the cover being secured to these by means of rivets or screws, such as shown in section at 18. The cross rib 16 closes the lower side of the casing, while flanges turned either from the plate 10 or the plate 15, may close the remaining sides of this casing, as shown.

At the upper edge of the housing are formed rectangular notches 19, into which project prongs 20 of the settable slides 21. These slides are mounted between the plates 10 and 15, and as shown, are vertically guided by two' of the ribs 17, and two ribs 22, which are carried on a laterally slidable plate 23, held in the position shown by leaf springs 25, mounted between the ribs 17 and 22. As shown these slides have beveled projections 26, adapted to engage corresponding notches 28 in the vertical strips 22. The lateral movement of the plate 23 allows the slides to be depressed, but presses the strips 22 toward the slides engaging their projections, and the springs 25 hold them in the position last given them. The plate 23 may be moved laterally (to the left in Figs. 2 and 3), by means of a projection the upward movement of the slides.

The letters are secured to thecarrier by Learner 29 when engaged by a suitable cam, therei.

means of two clamps or grippers 34, pressing toward the plate 10 under the action of coiled springs 35 mounted on a rod 36, secured in ears 37, bent up from the end of a short strip 38, which is secured to the plate 10. The clamps 34.are pivotally carried on this short rod or pin 36, and the springsl are bent over the clamps as at 39,- to press them toward the plate. A nut or block 40, rotatably mountedon the rod 36, to which these two springs are attached, is provided with a plurality of threaded holes 41, any of which may be engaged by a screw 42, ex-

tending through the plate 10. This provides for changing the tensio-n on the springs 35. A rod 44 pivoted at its lower end to the ear 37, has an offset portion 45 forming a crank engaging the grippers 34 to raise them, and extends between the ribs 16 and 46, thus providing a pivot point at either side of the crank portion. At its upper end the rod is bent outwardly at 47, forming a small lever arm operating in a slot 48 in the plate. This allows cams or projections in the loading and discharging mechanisms, acting on this portion 47 of the rod to momentarily raise the grippers 34 to allow a letter to be insertcd or removed from the carriers. Fig. 6 is a detail of the plate 23, showing the notches 28, the rectangular notches 19, and the strips 22 carried by this plate. When the plate is pressed inwardly toward the left, it carries these strips out of engagement with the projections 26, allowing the upward movement of the slide 21 as described.

To provide for bringing the carriers properly to the reading position and to guide them through the keyboard machine, l provide guide heads or buttons 50, having undercut Shanks 51, secured to the plate 10. These heads are adapted to engage T-slots ina guideway 53, as will be hereinafter described. There are preferably two of these heads, so arranged that the carrier may be guided along a curved trackway, and they are properly spaced apart so that the carrier may be Drought to the desired position in the -keyboard machine.

The carrier just described, is adapted to grip and release letters and similar pieces of mail matter, and has settable mechanism adapted to be positioned according to the address on such letter. The slides 21 are adapted to be placed in any of three positions, and may be in various positions relative to each other thereby allowing a combination of positions, which combination iS adapted to represent a certain route corresponding to the address on a letter. It will be seen that by increasing the number of slides 21, and increasing the number of notches 28, that is the number of positions of these slides, that a very much larger number of combinations may be obtained. The drawings show a carrier having two slides of threev ositions each, which provides for nine com inations, but this is merely illustrative of any number of combinations.

The machine for loading the letters into the carriers may be of any convenient construction adapted to feed the letters one by one to carriers having their rippers open to receive the letters, and a apted to dis charge the loaded carriers from the machine.

The loadin mechanism may be mounted in any suitab e frame, which as shown comprises two side members 55 and 56 connected by various cross members 57. These side members form the supports or bearings for various cross shafts for supporting the letter feeding rollers and carrier feeding mechanism. rlhe letters L are carried vertically on one edge, in a chute 61 having a guide 62 for one edge of the letters, adapted to aline one edge of all the vletters so that they may be properly received in the carriers.

As shown, the foremost letter L is engaged by a resilient roller 64 which is rotated in the direction to feed this letter downwardly, and it passes between two rollers 65 and 66, the outer roller 65, rotates in a direction to pass the letter downwardly while the one 'under the pile 66 rotates in a direction to push the letters back, thereby separating the first letter from the remaining letters and preventing more than one letter being fed downwardly at a time. The rollers 67 and 68 receive the letter from the rollers '65 and 66, and feed it downwardly along the guide 69 where it is engaged by a brush or flier 70 having a series of flexible wings 71, normally brushing the guideway 69 and insuring the letters entering the grippers of the carriers.

The carriers 7 are placed in the machine between the guides 72 and rest on a downwardly inclined guide 73. One by one they7 slide off from this guide, by gravity or other suitable means, and drop onto a support 76 ahead of a pusher or plunger 75, adapted to move the carrier past a cam 7 4, Figs. 10 and 12, which engages the projecting end v47 of the rod 44, thereby opening the grippers to receive the letter, which is at that moment being sent downwardly from the common pile. As each carrier is pushed forward by the plunger behind it, it passes this projection allowing the grippers to engage the letter, and drops onto an arcual chute 77 comprising two guides which lead the car- --riers downwardly lo a conveyer belt 7S, to be hereinal'ler described. A roller 75l, having resilient. llangres 81. is adapted to engage the carriers as they4 are. pushed forward b v the. pusher 7o. and start. them instantly downwardly onto the chute 77.

The mechanism just described, may be driven by a suitable motor 84, Fig. 1, which Ihroug'hai belt Si drives a shaft S6 sup-- ported on suitable hangers S7 adjacent thc irame oi" the letter loading` machine. Ruu- .ning over a small pulley on this shaft, is a belt S0 which drives a pulley 90 on the shaft 7 0 ol the roller 79. A belt 02 running over a small pulley 93 on the shaft 79", drives a conumratively larger pulley 94 on the shaft 95, a sprocket chain 97 running over a. sprocket 0S on the shaft', and over a sprocket 09, drives the shait 67 of the roller 68 to which it is attached. rlhis shait 6T is rovidcd with a gear 100 meshing with a gear 101 on the shalt 68, thereby driving the roller 67 with the same surface speed as the roller 68. The flier or brush is driven by a sinocket chain 116 running' over snitahlc sprockets on shafts and 70. This iuuch ot' the mechanism is driven constantly.

It is desirable to drive the rollers 64` 65 and 66 at such time-s that the letter will be lied to the carrier at the proper moment. Accordingly these three rollers are driven intermittently by a roller 10.4- carried on a shaft 105, which extends through the sides 55 and 56 oi" the frame, and is carried on the upper end of rock arms 106 and 107, pivoted on the shaft 108. The arm 107 is rigid with another arm 109, forming. a bell crank, and at its outer end is attached to a connecting link 110 connected at its lower end to a lever 112 bearing against a cam 113 on the shaft 95. This cam is so arranged that at the proper time. the lever 112 is depressed, drawing downwardly on the arm 100 and swinging` the roller 104 out of contact with the roller 65, thereby stopping the initial feeding rollers. As soon as the low portion of the cam 113 is reached, however, a tension spring' 115 attached to the arm 109 of the bell crank and to the frame, swings the roller 104 into contact with the roller 65, thereby driving),` it. The means for driving' the roller 104 and the initial feedint, rollers comprises a pulley 118 on the shaft 70, over which runs a somewhat elastic belt 119. drivingr a pulley 120, on the end oi the shaft 105. The belt 119 being` elastic. allows constantly for the movement oi the shaft 105 in slots 121 in the sides of the frame, and permits the swinging movement of the shaft 105 about the shaft 108. A sprocket chain 123 running over suitable sprockets on the shafts 65a and 66, drives the roller 66 and asimilar chain 124 runnineV over suitable sprockets on the shaft 65a and 64, drives the upper feeding roller 64, thereby giving these three rollers their proper direction.

The supports 73 and 76, act as guides for the pusher 7 5, which is reciprocated by links 130, pivotally connected to the pusher and having' their other ends rotatably engagingg au otlset intermediate portion 131 of the shaft 95, thus forming a crank.'

To sum up the operation of the loading' machine: The pusher 7 5 draws back beneath the support 73, allowing a carrier to fall onto the support 75, which positionsit so that the arm 47 will engage the cam or projection 74. A forward movement of the pusher thereby opens the grippers 34. A letter 60, having been previously fed from the mass above by means of rollers 64, 6o, 67 and 68, as described, is in proper position to be engaged by these lingers or grippers. A further forward movement oli' the pusher releases the arm 47 which clamps the letter to the carrier, and drops it onto the chute 77.

The carriers are placed in proper position by two chains 135 running over sprockets 136 and over sprockets 139 carried by supports 140 secured to the frame of the letter' loading machine. One reach oi each chain 135 extends vertically from one side of the sprockets 136, to an idler sprocket 141 and then inclines upwardly to the sprocket 139. Extending inwardly from various links of the chains 135, are L-shaped linge-rs 142 having the feet portion of the L extending outwardly and inclined slightly. These ingers engage the ears 12 of carriers as they are brought along a conveyer belt 138 (leading from the selecting machine) and raise' them to the inclinedportion of the chain where they drop onto the rails 72. The angle of the chain between the sprockets 141 and 139 is such that the feet of the fingers incline downwardly, allowing the carriers to slide off as shown at 143.

As before stated, the loaded carriers are dropped into an arenal chute 77, bringing the carriers onto a conveyor belt 78, which at this end runs over a pulley 145, and passes between the lower ends of the arcual members of the chute 77. These members are preferably made of angle strips, and at their ends the inwardly extending horizontal portions are cut away at 146, allowing the sides of the belt to pass between the vertical portions 147 of the members 77, thereby bringing projecting` iingers 150 on the belt 7 8 into position to engage the ears ot the carriers to convey them upwardly to the keyboard machine, as shown in Fia'.` 13.

Referring next to the keyboard machine, I will first describe this mechanism as adapted for one operator, as shown in Fig. 1 and in Figs. 13 to 16 inclusive. The frame of this machine comprises vertical members 155 connected by Various cross members 156 extending from front to back and cross members 157 extending across the machine Sidewise at the intermediate portion of the upri ht member 155. Two of the cross mem ers designated 158 are extended forwardly and the cross members at the bottom 159, are extended forwardly. At the ends y of these are secured vertical members 160,

. 157 of the u per end of the frame.

by curved surfaces 169, substantiall centric with the shaft 165, and being ormed braced by variouscross members and forming the frame work for supporting the keys 162.

At the upper end the conveyer belt 78 runs over a pulley 164, carried on a shaft 165, su ported between two upright members 16g, secured to the upper member 157 of the frame. As the carriers conveyed upwardly by the projections 150, reach the pulley 164, the forward ears 11 are engaged conguides 178 bringing them downwardly into a chute 180.

The chute 180 comprises two channel members, each given a quarter turn as shown, and so spaced apart that they constantly engage the four ears of the carriers bringing the carriers downwardly onto a T-slotted guide 53, heretofore mentioned in connection with the carrier. This guide has one side cut away as at 181, allowing the heads of the carriers to engage the lower vrail of the guide. At this point the guide `is slanted upwardly so that as soon as the carriers enter, they slide forwardly and down the curved portion 183 coming to the vertical portion 184 where they are stopped in full view `of the operator of the key'-v board.

At the portion where the slotted guide is cut away allowing the entry of the carriers, it is necessary to discontinue the channel members of the guides 180', as shown at 185,

- allowing the carriers to slide beneath this channel member and downward into the reading position as described.

The keyboard may be provided with any suitable mechanism connecting each key with hammers adapted to depress the slides 21 in the carriers, to certain positions corresponding with the addresses on the letters.' As shown, the keys 162 are-mounted on vertical slide bars 163, extending through cross pieces 144 and 166 of the frame, and when fully depressed abutting a cross piece 148 at the lower ends, to limit the downward movement. 'lhey are provided with intermediate collars 168, against which bears a spring 149, surrounding each of the plungers, to return them to normal position after depression.

Mounted between two of the uprights 155, are two rock shafts 151 having forwardly extending rock arms 152 with their forward ends adapted to engage pins 153 carried by the slide bars 163. Each of these rock shafts is common to all of the keys and is provided with rock arms 175 connected by links 154 to rock arms 179 mounted on vertical rockl shafts 161, rotatably mounted in suitable cross members 182 of the frame. On the rock shafts 161 are arms186 and 187, the arm 186 being offset at its intermediate portion as at 189, to extend around the forward rock shaft 161. Carried on the forward end of these rock arms 186 and 187 are hammers or pushers 188, adapted to position the slides of the carriers.

When a key is depressed, the pins 153 engage the free ends lof the rock arms 152, thereby rocking either or both of the shafts 151 and drawino forward on the links 154 rotating the rodk shafts 161 and swinging Athe arms 186 and 187 inwardly, bringing the pushers 188 into contact with the slides on the carriers. The pushers are then returned to idle position by coil springs 199 on the shaft 161, each having one end secured to the shaft and the other to the bearing member. In order that these pushers may move -the slides on the carriers to the proper position corresponding to the key depressed, I

so position the pins 153 on 'the slide bars that when the key is fully depressed it will move the rock arms 152 the proper distance.

In order that each key when depressed, will set a different combination of positions of the slides of the carrier, the pins 153 are diii'erently positioned on each slide bar; for example, the key at the left has its pinsl in position to entirely depress both the rock arms 152, the next adjacent key would depress one rock arm clear down, and the other only enough to move the corresponding slide one notch, while one of the keys, the one shown at the extreme right, would have no connection with the rock shaft, but would act only to discharge a carrier, leaving both its slides in the first position. A use which may be made of this key would be to discharge carriers which might not have been properly loaded.

As shown, the means for stopping the carriers in the reading position and discharging them from the same (this may be any suitable escapement mechanism) comprises two trip catches 190 and 191, pivoted on shafts 192, supported by the frame members 158. The escapement dog 190 has a depending arm 193, pivotally connected at its lower end with a link 194 which is pivoted at its forward end to an arm 195 on a rock shaft 196. Rigid with this rock shaft 195 are forwardly extending arms 197 adapted to be engaged b the pins 198. There is preferably one o these arms for each of the slide bars 163, so that when any one of the keys is depressed, the escapement rock shaft 196 will be operated. Attached to the other side of the rock arm 195, is a link 200 having a slotted pivotal connection with the escapement dog 191. This slot allows the key bar to be slightly depressed, throwing the hooked upper end of the dog 190 under the second of the carriers in the' reading position and bringing the hammer or pusher 188 into engagement with the slide 21 before the dog 191 is pushed backwardly from beneath the lower carrier a1- lowing it to drop.

Accordingly, when a key is depressed, the first part of the movement brings the pushers 188 into contact with the slides and positions them accordingly, at substantially the same time through the link 194, pushes the point of the dog 190 into the path of the carrier above the one being set. By the time this movement is accomplished, the link 200 is moved enough so that its lost motion connection 202 is engaging and pushing the dog 191 out of the path of the carrier being set. Thus the dog 190 supports the carrier above the one just set, while the dog 191 is pushed out of the way, allowing the set carrier to drop, and on the-return movement of the key the spring 203 draws this dog 191 into the path of the next carrier, which is at that time released by the dog 190. At the finish of the movement, the dog 191 is then in substantially the position shown, and the dog 190 would be again drawn out of the path of the upper carrier.

The released carriers fall onto an arcual chute 205 and are slid forward 0H from this chute onto a second chute 206, abutting a stop 207 and sliding onto a belt 208 mounted on pulleys 209 and 210, carried by the frame of the machine. This belt is propelled by a sprocket chain 212, running over suitable sprockets 213, the lower one of which is rigid with the shaft 214, carried by arms 216 and .having rigid thereon a driven pulley 218. Over this pulley 218, runs a belt 220 having projections 221 corresponding to the projections 150 on the belt 78. The direction of the belt 208 as indicated by the arrow, is such that carriers falling thereon are brought to the belt 220 and the projections 221 pick up the carriers in the manner described in connection with the belt 78, and conveys them to the selecting machine.

The selecting machine comprises mechanism adapted to remove the carriers having v fore mentioned.

certain combinations of positions of the carrier slides from the general group, and mechanism for propelling the carriers in succession past the selecting or removing mechanism, as well as mechanism for removing the letters from the selected carriers.

This selecting mechanism is shown in Figs. 1 and 17 to 26 inclusive. A suitable frame for this machine' comprises vertical members 225 and cross members 226 at the top and bottom, with intermediate cross members 228 connecting these vertical members. Attached to these members are suitable c ross members and projectingportions carrylng the various shafts and other parts of the machine hereinafter mentioned.

The belt 220 running over a pulley 230 on a shaft 231, brings the carriers to the upper end of the machine onto a chute 232, carried between two of the vertical members of the frame and drops the carriers onto a conveyer belt 233. This belt 233 runs over pulleys 234 and pulleys 235 running on shafts 237 and 238 respectively. As shown, the shaft 237 has a bearing at each end in vertical members 240 secured to the cross members of the frame. The shaft 238 is carried between the ends of projecting arms 242, from which extend upwardly vertical members 243, secured at their upper ends to arms 244 carrying the shaft 231 hereto- The carriers on falling onto the chute 232, are brought to the belt 233, to face upwardly, with the letter L in such a position that it is necessary to invert the carriers so that they will be in the proper position, before placing them into the chain mechanism which serves as a magazine for the unclassified letters, and which is hereinafter described. Accordingly, I provide curved or hooked portions 247 of rails 248. These curved portions correspond to the hooked rails or guides 176 of the keyboard machine and are adapted to engage first the ears 11 of the carrier at their under curved surface, and then the ears 12 at their upper curved surface. The rails 248 extend laterally partly through the machine and are carried by the vertical inembers of the frame, and being curved downwardly at 250, so that carriers sliding olf from the rail portion 248 may be brought into proper position to enter the propelling chains 252.

The propelling chains comprise two endless chain members mounted on sprocket jecting wings 264. These wings are adapted to engage the ears 11 of the carriers to propel them transversely and in succession past the selector device, hereinafter described.

The carriers are loaded into the chain or propelling mechanism with the ears (11) engaging the various wings 264, and are then propelled past selector bars 266 hereinafter described. The carriers are retained in engagement with these wings which in effect form pockets opening inwardly, upwardly and downwardly, by means of guideways or rails 270, under either chain and extending around the .sprockets 253 and 254. The carriers are so held that they project outwardly from the propelling chain, as shown in Figs. 17 and 26. At the under side of the llower reach` of the chain, the supports 270 are cut away or spread as at 271, and 272, Fig. 22, forming a gap through which the carriers having the proper combinations of the positions of the slides to be selected are allowed to drop.

The carriers thus selected are dropped, and impinge a de'lector plate or short chute 273 carried by the frame of the machine. This brings them onto a belt 275 running (in the direction of the arrows), over suitable pulleys 276 and 277 carried on suitable shafts 278 and 279 respectively. These shafts are carried on short arms 280 and 281, of the frame. .This belt is propelled by a belt 282 running on a suitable pulley on the end of the shaft 279 and over a driving pulley 283. 'The carriers are laid on this belt 275 in the position shown, and they are removed therefrom by hooked portions 284 of the rails 285, thus inverting the carrier as described in connection with the rails 248. The carriers move along these rails with their ears 11 engaging them and are propelled along the same by means of projections 286, carried on suitable chain 288, so positioned that they engage the ears of the carriers to move them along these rails. On one of these rails is a projection indicated at 289, which is adapted to enga e the arm 47 of the gripper release of the etters. A brush 290, preferably having flexible wings is carried by arms 291 on the frame and brushes the letters down to a short chute 292 vwhere they fall into a suitable receptacle 294. Here the letters 287 are stacked by a second brush 293, as shown.

The chain 288 runs over suitable sprockets 295 carried by arms 296 of the frame of the machine and then upwardly and over a sprocket 297, carried by the shaft 238, heretofore mentioned. The projections on the chain 288 are so arranged that they en age the ears of the carriers as they slide oil" rom the curved surface of the hooked portions 284 of the rail 285, and a curved guide 300, pivoted at 301 is adapted to hold these carriers in engagementv with the projections 286 until the projections holding a carrier start upwardly and assume an angle which causes them to retain the carriers. These empty carriers are thereby brought upwardly and over the pulley 235 onto the belt 233, where they pass beneath the short chute 232-and onto the rails 248. This provides for brinffing the empty carriers back into the chain 252, so that they may be in effect stored here, until it is desired to convey them back to the loading mechanism. The slidable plate 23 of the carrier is pressed inwardly b v means of a projection 310 carried by one of the rails 285 engaging the lip or projection 29 f on the p ate 23, allowing the slidesto move to their upper position as heretofore described. Accordlngly, all the carriers carried up by the belt 288 and back into the propelling chains have their slides set in their rst position, which setting may be referred to as zero, for it is referable not to have any route corresponding to it. To bring these carriers back to the loading mechanism, it is only necessary to set the selector barsto discharge these carriers and move the curved guides 300 on the pivots 301, to allow the carriers to drop onto the rails 305, thereby bringing them onto a deflector plate 306 and then onto the belt 138, from which they are brought upwardly to the loading mechanism by the chains 135, as

heretofore described. This belt is shown as running beneath the keyboard mechanism and being guided over pulleys 307 and 308. The pulley 308 is driven by a chain 309 running over a suitable sprocket on the shaft 86, heretofore mentioned.

The carriers on the rails 248 are bunched or grouped at the beginning of the downwardly curved portion 250, as indicated at 312, and they are prevented from sliding down this portion, except when desired, by means of a hook 313 pivoted at the curved portion 250 of one of the rails 248, andoperated by a link 314 connected at its lower end with an arm 316. This arm is pivoted on a portion of the frame at 317, and comprises a portion of a feeler lever having a surface 318 standing adjacent the chains 252 and adapted to engage the under side of the ears of the carriers and be moved upwardly by means of a spring 319. Wherever in the propelling chains there are enough successive empty wing pockets to allow the upward movement of the portions 318-the spring 319 pulls downwardly on the link 314 drawing downwardly on the catch 313 and dischar ing a number of the carriers which slide o from the curved rails 250 and come into the chain between the wings, as heretofore described.

In order to group or compact the carriers been discharged, and close up the spaces between the carriers, it is necessary to remove in the chain, after a number ofthem have wings.

the carriers from the chain and put them in again in succession in contiguous positions. To remove the carriers from the chain and replace them in contiguous positions, I provide cams 320, standing between the wings of the chains and engaging the lower edge of the carriers, raising them free of the Above these earns 320, are similarly shaped cam rails 322, carried by the frame of the machine and adapted to engage the ears of the carriers. These rails 322 support the carriers above the wings of the chain, and the carriers are pushed along the rails and off from the ends 323, dropping again into the propelling chains in contiguous positions. The thickness of these caru riers, including the buttons or T-heads 50, is substantially equal to the spacing of the wings on the pro eller chains, which causes them to be proper y positioned in the chains.

At various points along the chain, I provide pushers in the form of projecting fingers 325 (Fig. 18), so shaped that they pass the rail 320 and curve inwardly at their outer ends to engage the intermediate portion of the carriers. These lingers coming to the upper reach of the belt push the carriers grouped on the rails 322 off from the ends 323 and into the chain, so that behind each of these fingers is an empty space in the chains to which the feeler lever 318 responds, discharging carriers from the rails 248 and thereby keeping the chain substantially full of carriers.

A belt 327 carried on pulleys 328 and.329 having their shafts suitably supported by the frame of the machine, is propelled by a chain 330 running over a sprocket 331 and over a sprocket 333 on the shaft 237. The upper reach of this belt is adapted to frictionally engage the lower edge of the carriers, thereby propelling them along the rails 248 and grouping or bunching them at 312 as heretofore described.

As shown, the belt 220, is propelled by a chain 335 on suitable sprockets carried by the shafts 231 and 238, the shafts 238 being propelled by the chain 288 which is in turn driven by a chain 237 running over a suitable sprocket on the shaft 256 and over a second sprocket on the shaft of the adjacent sprockets 295. The chain 288 thereby rotates the shaft 238, and drives the belt 233 and 327 through the connections described.

As heretofore stated, the carriers are removed from the propelling chain by providing a gap in the supporting strips 270 and bridging this gap with settable bars having supporting surfaces co-acting with the projections 2O on the slides, some of these surfaces being discontinued above the gap so that carriers having a certain setting will fall through the gap, while all others are carried across. Any convenient arrangenient of supporting surfaces co-aetingr with the settable feature of the carrier may be provided to accomplish this result.

As shown, the selector bars 266 are each provided with two pairs of parallel longitudinal ribs 267 and 268. l`he ribs 267 extend throughout the length of the bars 266 and all carriers having their slides in such positions that the projections 20 get above either of these pairs of ribs, are carried entirely across theI gap 271, while those carriers having their slides so set thattheir projections engage the lower pairs of ribs 268 are carried to a point above the gap' where the ribs 268 are discontinued, allowing the rarriers to drop through. lVith the arrangement shown, each pair ot' the ribs 268 and 268l always engage the projections of the slides of the carriers which are to be selected. rllhose not engaging both pairsl of these ribs drop below the bars before reaching the gap and are carried across it by means of the undercut portion 13 of one ear of the carrier engaging and sliding on the edge and side of a rail 344. This rail is bent outwardly as at 345, and then inwardly again at 346, and then leads upwardly again to the guideway 270. This offset portionr272 of the rail 344, allows the selected carriersl to miss this rail when dropped, but supports the carriers having their slides too low to engage the selector' hars, while they pass the gap. The rail 344 .is cut downwardly as shown, low enough to allow the carriers to pass beneath the selector bars in their lowest position, but the ears of the carriers are still engaged and propelled by the. wings of the chain as shown in Fig. 26. The supporting rail 270 beneath the opposite chain is cut downwardly as shown at 348, and adjacent the gap 271 it is turned downwardly as at 347, to provide for the carriers supported by the rail 344 sliding smoothly up onto the support 270, after crossing the gap.

The carriers are prevented from tilting when supported by the vprojections of onlir one slide, by the upper surfaces of these projections engaging the under surfaces of the ribs next above the ones supporting a carrier. Accordingly, to prevent carriers supported by either of the pairs of ribs 267 from tilting,.I,may provide additional pairs of ribs above these ribs 267 on each bar,

To set the selector b'ars 266 in their various positionscorresponding to a desired combination, vertically extending rods 352 supporting these bars are slidably mounted in frame members 354 and 355 carried by .the cross'members 228 of the frame of the machine7 and these rods have laterally projecting blocks 356 engaging the upper edges of slide bars 357. These bars are slidably carried by the frame members 354 and 355 and at one side of the frame each pair of 

